Home / 372,370,859.38-513,871,783.94-215,828,767.82

Finding the Fourth Proportional to 372,370,859.38, 513,871,783.94 and 215,828,767.82

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Solution

The fourth proportional to 372,370,859.38, 513,871,783.94 and 215,828,767.82 is: 297,843,698.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,370,859.38 : 513,871,783.94 = 215,828,767.82 : x
  2. Step 2: Convert to fraction form
    372,370,859.38/513,871,783.94 = 215,828,767.82/x
  3. Step 3: Cross multiply
    372,370,859.38x = 513,871,783.94 × 215,828,767.82
  4. Step 4: Simplify right side
    372,370,859.38x = 110,908,313,945,235,456
  5. Step 5: Solve for x
    x = 110,908,313,945,235,456/372,370,859.38
  6. Step 6: Final answer
    x = 297,843,698.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.